Pop quiz #2: Unit 3

Write the linear equation for the following word problem: 'A car rental company charges a flat fee of $50 plus $20 per day for renting a car.'

• y = 50x + 20

• y = 50x - 20

• y = 20x + 50

• y = 20x - 50

Interpret the slope and y-intercept of the linear function y = 3x + 2.

• The slope is 3 and the y-intercept is 2.

• The slope is 1 and the y-intercept is 4.

• The slope is 4 and the y-intercept is 1.

• The slope is 2 and the y-intercept is 3.

Identify the slope and y-intercept of the linear function: y = -2x + 5.

• Slope: 2, Y-intercept: -5

• Slope: -2, Y-intercept: 5

• Slope: -5, Y-intercept: 2

• Slope: 0, Y-intercept: 5

Find the slope from the given points: (2, 5) and (4, 9).

• 10

• 2

• 7

• 3

Write the linear equation for the following word problem: 'A phone company charges a flat fee of $30 plus $0.05 per minute for using their service.'

• y = 0.05x - 30

• y = 30x + 0.05

• y = 0.05x + 30

• y = 0.30x + 0.05

Interpret the slope and y-intercept of the linear function y = -0.5x + 4.

• The slope is -0.5 and the y-intercept is 4.

• The slope is -4 and the y-intercept is 0.5.

• The slope is 1 and the y-intercept is 4.

• The slope is 0.5 and the y-intercept is -4.

Find the slope from the given points: (-3, 7) and (5, 19).

• 4

• 10

• 6

• 2

Write the linear equation for the following word problem: 'A shipping company charges a flat fee of $10 plus $15 per package for shipping.'

• y = 10x + 15

• y = 15x + 10

• y = 10 + 15x

• y = 15x - 10

Interpret the slope and y-intercept of the linear function y = 0.75x - 1.

• The slope is 1 and the y-intercept is 0.75.

• The slope is -1 and the y-intercept is 0.75.

• The slope is 0.75 and the y-intercept is 1.

• The slope is 0.75 and the y-intercept is -1.

Draw something that represents a function for you